Home / 742,169.25-1,024,195.55-402,637.50

Finding the Fourth Proportional to 742,169.25, 1,024,195.55 and 402,637.50

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Solution

The fourth proportional to 742,169.25, 1,024,195.55 and 402,637.50 is: 555,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,169.25 : 1,024,195.55 = 402,637.50 : x
  2. Step 2: Convert to fraction form
    742,169.25/1,024,195.55 = 402,637.50/x
  3. Step 3: Cross multiply
    742,169.25x = 1,024,195.55 × 402,637.50
  4. Step 4: Simplify right side
    742,169.25x = 412,379,533,749.94
  5. Step 5: Solve for x
    x = 412,379,533,749.94/742,169.25
  6. Step 6: Final answer
    x = 555,640.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.